Compare apples to apples. Who's better? 比较治疗方案之间哪个更好， Why is that? 为什么更好？ Five months ago, 五个月前， I led a workshop at the largest university hospital 我在北欧最大的医学院 in Northern Europe. 组织了一次专题讨论会。 They
How do you do it? Well you have this great big tank full of liquid detergent. 你怎么做呢？ 你有这么一大池子的液体清洁剂。 You pump it at a high pressure through a nozzle. You create a spray of detergent. 你用高压将它压过一个喷嘴，你制造了
Typewriters were very expensive and my family could not afford one. 打字机非常昂贵，我的家庭负担不起。 I was one of two kids from Baldwin County that was chosen to go to Washington along with hundreds of other kids ac
THE PRESIDENT: Thank you. Mr. Secretary, thank you for the kind introduction. Members of my Cabinet, members of the administration, Admiral Mullen, members of the United States Congress, Senator Warne
Building a Clean Energy Economy President Obama holds a town hall discussion with workers about building a 21st century clean energy economy to win the future as he visits Gamesa Technology Corporatio
